re·​hy·​drate | \ (ˌ)rē-ˈhī-ˌdrāt How to pronounce rehydrate (audio) \
rehydrated; rehydrating; rehydrates

Definition of rehydrate

transitive verb

: to restore fluid to (something dehydrated)

Other Words from rehydrate

rehydratable \ (ˌ)rē-​ˈhī-​ˌdrā-​tə-​bəl How to pronounce rehydrate (audio) \ adjective
rehydration \ ˌrē-​ˌhī-​ˈdrā-​shən How to pronounce rehydrate (audio) \ noun

Examples of rehydrate in a Sentence

Recent Examples on the Web Instead of lemonade, locals prefer to rehydrate with a detoxifying and immune-boosting herbal tea-to-go. CNN, 6 Sep. 2022 The astronauts used it to rehydrate their meals and drinks, and to extinguish fires. Manasee Wagh, Popular Mechanics, 1 Aug. 2022 Remove from heat, and let stand 5 minutes to rehydrate; drain. People Staff,, 30 July 2022 Those who have jobs that require them to work outside during the day anyway, such as construction workers, should take frequent breaks throughout the day to rest and rehydrate. Perry Vandell, The Arizona Republic, 8 June 2022 Equipped with six different means of cooking, this oven can air fry, broil, reheat, roast, bake, and rehydrate in just minutes. Madison Yauger,, 12 July 2022 Too many exfoliants can damage the skin's moisture barrier, which is why this cleanser uses squalane to rehydrate and soothe the skin. ELLE, 28 June 2022 Coconut water can be a great way to rehydrate and provide the body a slew of nutrients and electrolytes. Stefani Sassos, Ms, Rdn, Cso, Cdn, Nasm-cpt, Good Housekeeping, 9 June 2022 Its healing properties will soothe any inflammation and redness and rehydrate the skin. Grooming Playbook, The Salt Lake Tribune, 9 June 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rehydrate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of rehydrate

1945, in the meaning defined above

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The first known use of rehydrate was in 1945

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Last Updated

16 Sep 2022

Cite this Entry

“Rehydrate.” Dictionary, Merriam-Webster, Accessed 27 Sep. 2022.

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More Definitions for rehydrate


transitive verb
re·​hy·​drate | \ (ˈ)rē-ˈhī-ˌdrāt How to pronounce rehydrate (audio) \
rehydrated; rehydrating

Medical Definition of rehydrate

: to restore fluid to (something dehydrated) especially : to restore body fluid lost in dehydration to rehydrate a patient

Other Words from rehydrate

rehydration \ ˌrē-​ˌhī-​ˈdrā-​shən How to pronounce rehydrate (audio) \ noun

More from Merriam-Webster on rehydrate

Thesaurus: All synonyms and antonyms for rehydrate


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